baber/WOPTO huggingface dataset:
Patent GB-1262372-A (GB)
Title: Electrically heated multiple sheet glazing unit
IPC: C03C27/12
Filed: 1969-04-30
Abstract: 1,262,372. Electric heating. LIBBEY-OWENS-FORD CO. 30 April, 1969 [15 May, 1968], No. 22021/69. Heading E1R. [Also in Divisions C1, F4, H3 and H5] An electrically heated double-glazed window 11 for a refrigerated display cabinet, (not shown), comprises two transparent non-conducting sheets 13, 14, joined at their peripheries to enclose a sealed air space 16 in which a plurality of spaced elongated resistance strips 19 are adhered to the surface of at least one sheet 14. Bus bars 20, 21, 22, connect the strips 19 for passage of current therethrough between lines 29, 30, connected to the bus bars 21, 22, via insulated conductors 25 and terminals 23. The resistance strips 19 comprise a silver paint/glass enamel mixture applied to sheet 14 by a silk screen process and then fired, a suitable silver paste containing 35% silver, 50% glass frit and 15% organic binders and solvent. Gold, palladium and platinum, or conducting materials containing an organic adhesive rather than a glass frit, may be used alternatively. The unit window 11 has a metal separator strip 15, but an alternative unit 12, Figs. 2, 4, 8, 9, 10, (not shown), comprises two glass sheets 31, 32, fused together at their edges. A further alternative uses a separator strip of plastics material bonded to the two sheets with suitable adhesive U.S.A. Specification 3,263,063 is mentioned.
Patent GB-1110320-A (GB)
Title: Improvements relating to gas burners
Inventor: PENMAN LAURENCE WALTER
IPC: F23D99/00
Filed: 1965-05-25
Abstract: 1,110,320. Burners. L. W. PENMAN ENGINEERING Ltd. 24 May, 1966 [25 May, 1965], No. 22061/65. Heading F4T. A gas burner having a body chamber 10 with inlet 11 and nozzle feed opening 12 has a piston 13 slidable against a spring 15, when the chamber is closed from the gas supply, to increase pressure in the chamber and expel dirt from the nozzle' jet. In a modification the chamber has a flexible diaphragm instead of the piston.
Patent GB-299940-A (GB)
Title: Improvements in or connected with means for mounting guns on aircraft
IPC: F41A27/30
Filed: 1927-08-25
Abstract: 299,940. Blackburn Aeroplane & Motor Co., Ltd., and Petty, G. E. Aug. 25, 1927. Mountings for use on aircraft.-An aircraft-gun mounting D revolves witthin the cockpit on upper and lower parallel roller tracks B, C, which may conform in plan to any convenient shape, such as circular, elliptical, or horse-shoe shape, or parallel straight tracks may be used. The elevating arm H, which supports the gun J on a universal joint H<1>, H<2>, is pivoted at X to the mounting and counterbalanced by tension springs K. In the form shown, the tracks are elliptical in plan, see Figs. 5 and 6, and channel shaped in section to support the mounting on horizontal rollers F, G, and vertical rollers E. The gun is locked in elevation and training, respectively, by a spring pin M engaging holes in the sector M<2> and by a spring-controlled catch L<1> engaging holes in the track B, both locks being simultaneously operated by a Bowden wire L<2> actuated through a roller N<1> by a lever N on the outer end of the arm H. To balance the gun against wind pressure, rollers R, R<1> mounted on bell-crank levers R<2>, R<3> are pressed by a spring S against a continuous inclined track P which is shaped like the tracks B, C and lies between them. The mounting is thus urged against the wind direction by a force which varies with the position to which the gun is trained, being greatest when the mounting is midway between its fore and aft positions. In Fig. 1, the gun and its elevating arm are shown stowed within the fuselage to diminish the wind resistance. Specifications 119,043, 126,364, 128,244, 130,097, 152,368, and 204,070 are referred to.
Patent GB-336023-A (GB)
Title: Improvements in and relating to frame aerials
IPC: H01Q7/00
Filed: 1929-07-20
Abstract: 336,023. Blundell, L., and Curtis, W. H. July 20, 1929. Aerials.-Relates to frame aerials comprising two or more windings 2, 3 adapted to be switched into parallel for short-wave reception and consists in providing one or more end-portions such as 13, 14 and 15, 16 in order to make such windings asymmetrical with the object of increasing the tuning-range. The main coil 2 is earthed at an intermediate point 4, and is tuned by a condenser 10. The end 5 of the winding is connected to the anode of the first valve through a reaction condenser 6, and to the grid through a lead 12. A switch 8 connects the windings in parallel for short-wave reception.
Patent GB-479530-A (GB)
Title: A process of treating water
IPC: C05B13/06
Filed: 1936-08-30
Abstract: Metaphosphoric acid or a soluble metaphosphate, such as ammonium, sodium or potassium metaphosphate, is added to natural water containing a calcium compound, in substantially less than the stoichiometric amount with reference to the calcium compound, in order to prevent or delay the precipitation of calcium carbonate, or ensure that a finely divided non-adherent precipitate is produced, when ammonia is added to the water. Water so treated may be used as irrigation water for supplying ammonia to soils.
Patent GB-642865-A (GB)
Title: Improvements relating to the induction hardening of spur or helical gears and analogous metal articles
Inventor: BRIDLE JOHN HENRY
IPC: C21D9/32
Filed: 1948-08-25
Abstract: 642,865. Induction heating. MORRIS MOTORS, Ltd. Aug. 25, 1948, No. 22371. [Class 39(iii)] [Also in Group II] In a method of hardening gears and like members the work is passed axially at a uniform speed through a single turn high frequency inductor which has a profile conforming to that of the work, guiding the work through the indicator and quenching the heated surface as it emerges from the inductor. As shown, applied to a helical gear wheel, the gear wheel 6 is mounted on a mandrel 7 supported in a carriage 2 arranged for vertical movement on a support 1. A guide 34 mounted on the mandrel co-operates with a fixed point 32 and rotates the gear as it passes through an inductor 11, having feed plates 18 and 19 formed according to Specification 613,323, and a quenching chamber 12 formed according to Specification 619,829, [Group II]. The gear may be preheated, according to the method of Specification 608,707, by a single turn high frequency coil 10 which may be water-cooled. As the carriage 2 moves downwards a cam mounted thereon operates switches 52, 53 and 54, in that order to (a) switch on and off the preheating coil 10; (b) switch on and off the inductor 11; (c) switch the motor driving the carriage into reverse to return the carriage which, in its upward travel, operates the switch 51 which sets the control circuit-Fig. 4 (not shown)- for the next heating cycle. Several gears may be mounted on the mandrel for treatment and the guide 34 may be replaced by a replica gear. The Provisional Specification also includes the mandrel passing, with a sliding fit, through an aperture in the lower wall of the quenching device and the automatic starting and stopping of the cooling liquid. Specification 655,854 also is referred to.
Patent GB-981871-A (GB)
Title: A narrow central guide system for carriages on machine tools or analogous machines
IPC: B24B41/00
Filed: 1961-06-21
Abstract: 981,871. Rectilinear motion bearings. SCHARMANN & CO. G.m.b.H. June 21, 1961 [July 5, 1960], No. 22407/61. Heading F2A. [Also in Division B3] A guide system for carriages for machine tools comprises a central web 10 having side faces 13 and 14 with respective grooves 32 and 33 into which are bonded metal guide rails 30 and 31 respectively. A guiding face is machined, e.g. by grinding on one of the rails, and then a guide face parallel to the first is machined on the other guide rail. A carriage 11 extends over the top and side faces of the web and is guided by rollers 15 which co-operate with the machine surfaces of the guide rails. Any appropriate adhesive may be used to bond the metal guide rails in the grooves. The rollers 15 are adjustable to reduce lateral play between the carriage and the guides.
Patent GB-809776-A (GB)
Title: Improvements relating to mowers for attachment to tractors
Inventor: ELFES LEE EUGENE
IPC: A01D34/03
Filed: 1955-08-04
Abstract: 809,776. Mowing machines. MASSEYHARRIS-FERGUSON Inc. Aug. 4, 1955, No. 22458/55. Addition to 789,803. Class 6(3). The mower claimed in the parent Specification is adapted for attachment to a tractor having a hydraulic power lift including a rear hitch linkage and means are provided for connecting the rear portion of the mower frame to the hitch linkage for pivotal movement about a first connector attached to the tractor to raise the frame into a position for attachment of a second connector. As shown the first connector comprises a pin 96 engageable with an apertured element 98 on the body of the tractor. The second connector comprises a laterally projecting bracket provided with slots 108a and mounted on a tube 52 carrying a drive shaft 64, the bracket being bolted to the tractor frame. The shaft 64 is driven from the tractor power shaft by means of a chain drive and when the mower is assembled on the tractor the drive chain is tensioned by means of an adjusting screw 111 which moves the machine frame within the limits allowed by the slots 108a. For raising the frame into position a check chain 25 attached to the link 24 is attached to a back plate 67 of the drive mechanism housing. A hydraulic actuator 183 is provided for raising the mower drag bar and the cutter bar is raised by a further hydraulic actuator 185. The actuators are controlled by valve levers 235 and 239 mounted on the tractor. The tractor may be as described in Specification 805,061 [Group XXXI].
Patent GB-1156218-A (GB)
Title: Fluid Vortex Piston Device
IPC: F16F9/344
Filed: 1967-05-15
Abstract: 1,156,218. Shock absorbers. BENDIX CORP. 15 May, 1967 [6 June, 1966], No. 22481/67. Heading F2S. A fluid vortex piston device for shock absorbers &c. comprises a reciprocable piston 47 with a vortex chamber 66 communicating with one side of the piston through tangential and radial openings 50, 52 respectively and with the other side of the piston through passages 20, 18, 16, so that movement of the piston downwardly causes a high resistance to fluid flow due to vertical flow, while movement of the piston in the opposite direction encounters a relative low resistance. The vortex chamber communicates with the one side of the piston through the set of tangential openings 50 or the set of radial opening 52 or a combination of both as in Fig. 2, by axially moving the vortex chamber as from a knob 70 on the dashboard, so that the velocity of the flow in the chamber, and hence resistance to piston movement may be varied as desired.
Patent GB-1254954-A (GB)
Title: Process for the production of megalomicin a
IPC: A47G25/06
Filed: 1969-05-02
Abstract: 1,254,954. Megalomicin A. SCHERICO Ltd. 2 May, 1969 [6 May, 1968], No. 22525/69. Heading C2A. A process for the. preparation of antibiotic Megalamicin A, or of a pharmaceutically acceptable functional derivative thereof, comprises hydrolysis under neutral or basic conditions of a substrate containing at least one of the antibiotic designated Megalomicin B, Megalomicin C 1  and Megalomicin C 2  so as to convert these into Megalomicin A, and isolation of Megalomicin A or of a fraction enriched in Megalomicin A in free form or in the form of a functional derivative.
Patent GB-1476286-A (GB)
Title: Cutter for plaster slabs
IPC: B28D1/22
Filed: 1975-05-23
Abstract: 1476286 Splitting J L MISSIOUX 23 May 1975 [28 May 1974] 22639/75 Heading B5E A cutter for plaster slabs comprises a framework 2 for supporting a first cutting blade 5, a second cutting blade 16 movable towards and away from the first blade, means 7, 8 for adjusting the position of the first blade relative to the second blade, and means for moving the second blade including a parallel linkage comprising at least two double levers 12 pivotally carried by the framework, corresponding ends of the levers being pivotally coupled to the second cutting blade and to a connecting rod mechanism 19 which is manually actuable by a lever 13, the point of attachment of each lever 12 to the second cutting blade being such that, when cutting a plaster slab, it is substantially aligned with the pivoting axis of the lever in the force applying direction. The framework consists of parts which are joined by bolts and spacers to form a cover and includes a double vertical guide plate in the shape of a fork to engage the sides of the upper cutter blade 16. Two double levers 12 are mounted on pivots 3 on the framework and at one of their ends are pivotally connected to the upper blade 16 and at their other ends are connected to a rod 18. One of the double levers is also pivotally connected to a rod 19 in turn pivotally connected to a lever 13 mounted on a pivot 21 on the framework. The lower blade 5 is mounted on bolts 22, 23 which pass through elongated holes in the uprights of the framework and through holes in stirrups 8 having nuts engaging screws 7 carried by supports pivotally mounted in the framework, rotation of the screws causing vertical adjustment of the lower blade. The lower blade is braced by angle members 6 secured by bolts to the blade and surrounded by an assembly comprising a pair of plates 10 hinged at 27 to side plates 9 slidable within the framework, springs 11 holding the side plates in contact with the blade at points 28. The plates 10 support a slab to be cut and can be swung to a vertical inoperative position. The lever 13 can be engaged by a latch 14 to act as a handle for carrying the cutter. Feet 31 can be swung from a closed position to support the cutter during use. In operation, a slab to be cut is placed on the plates 10 and the screws are adjusted so that the slab is a few millimeters from the upper blade. The lever 13 is lowered so that the upper blade bears on the slab and causes the assembly of side plates 9 and plates 10 to yield against the pressure of spring 11 until the plane of the plates 10 is aligned with the edge of the blade, further movement of the lever causing the blades to cut the slab. The action of the double levers 12 about the pivots 3 imparts a shearing, in addition to a vertical, movement to the upper blade.
Patent GB-205061-A (GB)
Title: Rivetting machine for tubular and bifurcated rivets
IPC: B21J15/26
Filed: 1923-09-10
Abstract: 205,061. Haedge, E., and Richter, H., (trading as Haedge & Richter). Oct. 4, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Setting tubular rivets; driving- mechanism.-A machine for the setting of both tubular and bifurcated rivets is adapted so that it may be operated by treadle or power drive as desired. The upper setting die r is interchangeably inserted in a spindle F slidably mounted in the head of the machine, and is reciprocated to set the rivets by a main lever e pivoting about a fulcrum e<1>. When operating by power the lever e is oscillated by a link d, which is reciprocated by an eccentric c on the shaft b of an electric motor s. When it is desired to operate by the treadle t, the pin e<3>, connecting the lever e to the link d, is removed and is used to connect the lever e to the link d<1>, which is reciprocated, when the treadle is operated, through a system of levers. After the initial downward movement of the treadle t has declutched the eccentric c by moving the clutch operating lever x, the connection y between the treadle levers and the clutch-operating lever is released. A last anvil u and a horn anvil v are detachably and adjustably held in the frame a of the machine by fastening devices w, to facilitate the riveting of different shaped bodies. Rivets, feeding.-Two pins k carried by the oscillating main lever e, Figs. 5 and 6, engage slots in plates h<1>, h<2>, free to rotate on a shaft g carried in bearings in the head of the machine. The resulting oscillatory movement of the plates h<1>, h<2> is transmitted through spring-pressed pawls l, l<1> in one direction only to a ratchet wheel h keyed on the shaft g. A rivet reservoir m mounted on the shaft g is thus intermittently rotated to feed the bifurated rivets down a raceway n to a rivet-receiving lock p into which they are allowed to drop singly by a stop mechanism o connected to the main lever. An interchangeable revolving tongue, q in the lock p sets the bifurcated rivets so that the shanks will be bent in the same direction. When setting tubular rivets the raceway n and the tongue q are removed.
Patent GB-768232-A (GB)
Title: Precision moulds for casting metals using polysilicate binders
Inventor: EMBLEM HAROLD GARTON
IPC: B22C1/16
Filed: 1953-08-18
Abstract: A binder for refractory material used for making moulds or cores for precision casting is prepared by hydrolysing ethyl silicate in the presence of a stable silica sol.  The ethyl silicate may be tetra-ethoxy silane, or the product obtained by reacting silicon tetrachloride with ethyl alcohol as described in Specification 290,717 [Class 2 (ii)], or the product described in Specification 674,137, [Group IV (b)].  A suitable ethyl silicate is available under the Registered Trade Mark "Silester." Hydrolysis is preferably effected in acid conditions, but may be carried out under basic condition or by emulsifying the ethyl silicate with the silica sol. The silica sol may be prepared by reacting a water-soluble inorganic silicate, e.g. sodium silicate with an ion-exchange resin.  Suitable silica sols are available under the Registered Trade Mark "Syton." Refractories specified are silica, sillimanite, calcined kaolin, fireclay grog, zircon and zirconia (in which materials the lime, magnesia and alkali content must not exceed 4 per cent).  In examples, the binding agent is made by (1) adding ethyl silicate to a solution of silica sol, hydrochloric acid and ethyl alcohol, and adding further silicate 1 hour after mixing; (2), (3) adding to hydrochloric acid solution, silica sol, ethyl alcohol and finally ethyl silicate; (4 to 6) adding to silica sol, hydrochloric acid, then ethyl alcohol and finally ethyl silicate: the respective binders are then mixed with (3 to 5) a mixture of equal parts by weight of zircon sand and calcined kaolin, or (6) fireclay grog, to form mould investment slurries.
Patent GB-226165-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J17/06
Filed: 1924-09-26
Abstract: 226,165. British Thomson-Houston Co., Ltd., (Assignees of Ferguson, C. V.). Dec. 13, 1923, [Convention date]. Vacuum tubes. - In electric discharge devices in which the cathode is the seat of an arc-like discharge, as in a hotcathode rectifier, the cathode comprises members 15, 16 of concentrated mass making imperfect contact, so as to become heated by a small current due to their high transition resistance. To minimize loss of heat by conduction, the supports for the members 15, 16 are made of smaller crosssection than these members. The members 15, 16 mav be in the form of discs in contact at their edges, or wedge-shaped, or one may be pointed or conical contacting at its tip with the other member which is in the form of a disc. The anode 2 may be of carbon, molybdenum, tungsten, &c., and the envelope 1 may be filled with argon. Specification 5557/15 is referred to.
Patent GB-1360889-A (GB)
Title: Copying machines
IPC: G03G15/02
Filed: 1972-05-16
Abstract: 1360889 Feeding sheets SOC REM 16 May 1972 [17 May 1971 (3) 5 May 1972] 22800/72 Heading B8R [Also in Division G2] Pile supports.-A pile of copy sheets is stored in a holder, positioned at 13, Fig. 1, comprising a base member 210, Fig. 9, and a paper bin 209, 207 secured to the base plate by means of a flange 221 on the latter and projections 222 on the bin fitting into holes in the base member. A plate 218, hinged to the bin at 219, supports the sheet pile, and is urged upwards by spring- actuated cam members 43 projecting through slots 212, 211 in the base member and the bin bottom 209, so that the top of the pile is pressed against a rod 226 and under front corner tabs 223, while the front of the pile abuts frontal pieces 224. Sheet separators.-A rotating friction separator roller 34, Figs. 1, 4 and 9, is supported on members 147, 148 pivoted on a shaft 37 and resting on lugs 40, 41 fixed on a shaft 42, whereby the roller 34 can be raised clear of or lowered on to the pile by an electromagnet 64. Sheet forwarders.-The separated copy sheets are advanced by rollers 35, 36 into the charging device of an electrostatic copying machine. Original sheets are advanced by rollers 20 on shafts 17, 18, 19, Fig. 1, over the exposure station of the machine, the shaft 17 being engaged or disengaged from the drive by means of a pinion 47 mounted on a pivoted arm 45 controlled by a further electromagnet. Duplicate feed; control mechanism.-When an original is presented manually to the rollers 20 on the shaft 17 (all the rollers 20 engaging upper pressure rollers on the machine lid), it is advanced until it engages a switch 60 between the shafts 17, 18, whereupon the shaft 17 is stopped and the roller 34 is lowered to feed a copy sheet, which engages a switch 68 between the rollers 34, 35, whereupon the shaft 17 is restarted and the roller 34 raised, the original and copy sheet then being advanced simultaneously through the exposure and recording stations. The switch 17 also controls certain functions of the copying machine, such as charging the corona unit. The position along the feed paths of the switches 60, 68 is manually adjustable by separate screws; Figs. 5-7 (not shown).
Patent GB-1271384-A (GB)
Title: Binary adjusting mechanism
IPC: B41B27/10
Filed: 1969-05-05
Abstract: 1,271,384. Gearing for converting rotary motion into oscillating motion. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 May, 1969 [8 May, 1968], No. 22807/69. Heading F2Q. A binary adjusting mechanism comprises a rotary input shaft 1 connected by cranks 2, 4 and a link 3 to an oscillatory shaft 6 which carries an arm 7 which is adapted, on energization of an electromagnet 10 or 11, to move laterally and engage a shoulder 14, 15 on a rack 12, 13 meshing a pinion 18 on an output shaft 19 in order to turn the shaft 19 in the appropriate direction. In a modification, the racks and pinion are replaced by a belt passing around a pulley. In another modification, link 3 is replaced by articulated links 40, 41, Fig. 7, which are supported by a crank 43. In a further modification, shoulder members 14, 15 are secured to a toothed belt which passes between guides 34, 35 and around pulleys 31, 32.
Patent GB-819769-A (GB)
Title: Improvements relating to the manufacture of printed circuits
IPC: H05K3/42
Filed: 1957-07-18
Abstract: Printed circuits are manufactured by treating the surface of an insulating base member with an abrasive material so as to impart thereto a clean mat finish, depositing a layer of a first metal on said treated surface by a chemical process, coating portions of said first metallic layer with a layer of material resistant to the deposit of a second metal, depositing a layer of said second metal on the exposed portions of said first metallic layer, removing the layer of resistant material and finally removing the portions of said first metallic layer which are not covered by said second metallic layer. Specifically, a "Bakelite" (Registered Trade Mark) base member is (1) sand-blasted with damp sand, (2) coated with nickel by deposition from a solution containing nickel chloride, sodium hypophosphate and sodium citrate, after having been pre-treated in stannous chloride and palladium chloride, (3) coated all over with a light-sensitive polyvinyl alcohol based resist material portions of which are exposed to exciting radiation so that, when developed, these exposed portions remain adhering to the nickel, (4) electroplated with copper on the exposed portions of nickel, (5) abraded to remove the resist material, and (6) immersed in a solution of orthophosphoric and nitric acids to remove the exposed nickel.